DeepSeek V3.1 vs OpenAI o3
Compare DeepSeek V3.1 by DeepSeek against OpenAI o3 by OpenAI, in 4 community votes, deepseek v3.1 wins 100% of head-to-head duels, tested across 54 shared challenges.
Our Verdict
DeepSeek V3.1Winner
OpenAI o3Runner-up
Pick DeepSeek V3.1. In 4 blind votes, DeepSeek V3.1 wins 100% of the time. That's not luck.
DeepSeek V3.1 is 50x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
DeepSeek V3.1
Input
$0.20
50× cheaper
Output
$0.80
50× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
DeepSeek V3.1 is cheaper on both — 50× input, 50× output
Writing DNA
Style Comparison
Similarity
35%
DeepSeek V3.1 uses 2.4x more emoji
DeepSeek V3.1
OpenAI o3
53%Vocabulary68%
14wSentence Length14w
0.42Hedging0.26
4.0Bold0.7
3.6Lists3.0
0.02Emoji0.00
0.40Headings0.38
0.22Transitions0.12
Based on 23 + 16 text responses
Research
What we learned reading every model
FAQ
